5 3 1 *ba b*b ab* 3 3 *ba b*b ab* 3 4 *ba b*b ab* 4 6 *aaa b*ba ab*a bba* 2 6 *a b*
YES 1 2 YES 2 1 3 2 YES 1 3 1 3 1 YES 1 2 1 3 4 1 4 NO